Satsford adams



No. 73,485. y PATENTED JAN.. 21,1868.

s. ADAMS. l WINNOWING MILL.

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SANFORD ADAMS, 0F BOSTON, MASSAGHSETTS. Lettera Patent. No. 73,485,dated January 21, 1868.

IMPRGVEMENT IN WINNOWING-MILLS.

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To ALL wHoM I rMAY Genesius:

Be it known'thet I," SANr onnAnnrsgofyostemiu the conntyef Su'olk, inthe State of Massachusetts, have inventednw and useful Improvements' inWinnowing-liills'or Grinisepnrntors; and I (lo hereby declare ihat thefollowing is -fulll eixaiot description thereof, reference being had tothe ucconlpanyingdruwings,

l and to 'the letters of reference-'marked thereon, in whichsluts e e e.

Figui-e1 is e reprend elevation, I Figure 2in side elevation," `Figure 3n vertical longitudinalsection through the centre o th'e wi iinower.

Figure 4 is e rear end elevation. i i Lilie lettersrepre'sent like portsin all the figures, The nntureoi` my invention consists in giving to theshoe orti-aine that holds the screens, such n motion as will morereadily cause se'edsof s certain class to'puss throughlthe,sgg-recits,.While otherseeds will pass over the sieves or screens.Also, 'in notching o'rutiug the rollers, on which fthefeeding-hopper'sud the shoe v ihrate,

to give the screens n jcrring metonto lgeep them fromcloggiaglu,,Alsofinhrrnngiug the trap, under which the grain is fed intothe? machine, in'such in manner that the amount otv gruinfeditto thewnnowercan he easily und surely adjusted, 'l 'iseg in erranging slots ut the rear endo? the winnow.e1 ,.in"euch u manner that the grain will becaught 'bytliein sind.ina.veni,`.whilethe'cheillis allowed .to escnpefreely; n

' In the. accompanying druw'ipgs, -A is" tl 1e `fcedhcpper;uB Bure thecompartlnents, into which the grain` irst comes from the'hopper A; C isthe beam, in whichl notched' rollers, 'H`H;,`nre placed, upon whichhopper A vibrutes; P P are pieces, which arepivoted to the beam G andthe frhme D, by means oi' which pieces' the'hcum C can be raised orlowered; E is the fan; F is u post or pivot, upon which the shoe Jswings, (seen in iig. 3;) I is'the trap for regulating the feed, and isheld in position by screws t; K is a. drawer, under the wnnower, inwhich the extra screws are kept; L is u' square shaft, driven by thegeur 2, cogging into gear 1, over and upon which shaft lthe spring 0rests; S S are longitudinal sluts, turning upon the pivots ff, figs. 3and 4. The cross-slats e e e e are fastened rigidly into thelongitudinal slots S S; -a a are screens, in the hopper A, seen in ig.3; b and g are screens, in' the shoe J c and alre boards, along whichthe grain passes into the conductors d und g is n conductor from thescreen g; s, gs. 1 and 2, is n crank, from which rods j ond Z pass tothe angle-irons or knees, k and lm.. A wire passes from the angle-iron kto the hopper A, us seen in iig. 1, and another wire, n, seen in figs. 2and 4, passes from themngle-iron m to the shoe J, and com. municates a.vibratory motion to it. The rollsH H, in the beam C, figs. 1 und 2, nrcconstructed with a. groove, into which the piece or track r tits,guiding the hopper A as it vibrates. The part of the rolls H H, uponwhich the hopper rests, is cogged or notched. The forward part of thehopper also rests on a. notched roller, placed in the wood-work B, iig.2. Rollers H H are also notched, and placed under the rear end of theshoe J', foi-.the shoe to vibrate upon, seen in figs. 4 end 3.` h is ascreen to conduct the grain down on to the Operation.

By turning the crunk ofthe mill, all the parts are set inhmotion.' Thehopper A is made to roll back and forwards on the rolls H, by means ofthe parts connecting the hopper to the crank s. The rolls H, beingnotched or fluted, a jarring motion is given to the hopper, as it rollsover them, keeping the screens of the hopper clear and free: By means ofthe screws t t, the trap I can easily -be raised or lowered to'feed thegrain, to any required quantity, und there is no danger of the trapmoving, us it might if held by friction only, as the common method. Thegrain passes over the two screens a a, in the hopper, iig. 3, and thendown on to in the screens in the shoc J. The shoe J swings on the postF, at one end, and rolls on the rolls HH, at the o ther end, seen iniig.' 3, being moved on the rolls by connections fn, m, und 1,.with thecrank s. The rolls H H here are also notched or tinted, as seen in iig.4, und give ujnrring motion, in addition to the side motion, to the shoeJ, es it vibrates, which jarring motion tends to juxnp out any seedsthat catch in the screens..

In ull winnowers of the usual construction, there is but very littleeectunl motionat thepivotcd end ci the shoe or frspxe that -contoins thcscreens, whichmukes them very liable to clog at this point. To overcomethis difficulty I employ the device of the spring O and 'square shaft L.The spring 0 is attached to the.rear

73,485 2 v i end o f the'shoe J, and posses over and` rests upon thesquare shaft L, which is constantly revolving. Thus the spring O, andwith it the rear end of the shoe J', is kept tumbling up and down by theangles of the shaft L, and this keeps the screens from clon-wimr :1ndalso julnps up lonv slender seeds in such a manner that they will passthrough a. very ne sieve, and can be separntedfrom the other seeds.Daisy-seed is of this class, and wit-hut this up-and-down lmotion, inaddition to the side motion of the screens, it cannet be sepa.- ratedfrom the grass-seed'.

The grain passes over and through the various screens into theconductors, and out on the'sides of the m'll vintobmkes M M. The slats eee e are fastened rigidly into the side pieces S'S, which turnenpivolsf.

C! What I claim asmy invention, und desire to secure by Letters Patent,is 11.1 claim` the luted rolls H, for either the hopper A'orA shoe J tovibrate upon, substantially as described land. for the purpose set'orth. f

2. The shaft L and spring O, arranged substantially as described, togive an additional motion to the pivoted end of the shoe J,substantially as and for the purposes set forth.

3. The slats e e e, fastened on to the sides S S, both swinging from thepivotsf, substantially 'as andfor the purpose se., forth.

I 4. The Vcombination of ,the hopper A, s nde l, and screw t, ns and forthe purpose set Iorth.

SANFORD ADAMS.

Witnessesi .JAMES W. BROWN, A. S. NICHOLS.

